Hi,

Yes it possible and you can see a lot of examples in Odoo code itself, you can check the working of the contact us form in the website.

For doing the same without code see this: Record Data To Backend Models From Website Form - Without Code

And in this blog it is shown how the input value in the web form is received in the controller, so after that you can crate the record in backend models by calling create method of required model:  Odoo get web form or template value in controller

Thanks